Last month rock fans saluted the 50th anniversary of “Sargent Pepper’s Lonely Hearts Club Band.”

However, the Lennon-McCartney partnership began 10 years earlier–July 1957, when 15-year old Paul McCartney, wanting to impress his new musical acquaintance, 16-year old John Lennon, borrowed Lennon’s guitar and broke into a rendition of “Twenty Flight Rock,” a hit from across the pond by 19-year old American rockabilly Elvis look-alike Eddie Cochran.

Neither of the two young Brits could know at that moment their impact on not only music, but the culture at large, nor could they know, back then, that together they’d write some of the most famous lines in rock music history:

Twenty years ago today
    Sargent Pepper taught the band to play